Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6d245c1fa1d2155…

MALICIOUS

PDF

69.7 KB Created: 2021-03-09 02:09:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ef99e34dfce1b809e383e67b33795b2d SHA-1: 66f360496683d5a9096c3aeb0cc8d3f6898811d9 SHA-256: a6d245c1fa1d2155c6e49a01f1b18f9291823ef1fe99b714c1228a7dfd0316ce
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://resalured.ru/wix?keyword=jbl+cinema+610+refurbished PDF link annotation
    • http://takaweri.mywebcommunity.org/82459182198.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392191/normal_5fd644a641b61.pdfIn PDF document text
    • https://cdn.sqhk.co/nabixisaf/cgjig8k/lekifadavisore.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484122/normal_5ff497904859b.pdfIn PDF document text
    • http://sagedix.medianewsonline.com/47230824826.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461204/normal_60184caab5cdd.pdfIn PDF document text
    • http://raxejudesezix.scienceontheweb.net/nokiwidelexemu.pdfIn PDF document text
    • https://cdn.sqhk.co/sotogademo/aERA1jg/small_cardboard_boxes_with_lids.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d57832f3-1d53-4a3c-b596-d9b0dea56988/traduction_en_anglais_de_trouble_obsessionnel_compulsif.pdfIn PDF document text
    • https://s3.amazonaws.com/zuguvoxoki/gedegetujuzobaturubil.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/matetubivejipifopajijavo.pdfIn PDF document text
    • http://bagugexasorip.myartsonline.com/how_to_make_non-readers_read.pdfIn PDF document text
    • https://0cc2a7d0-6f33-4335-9ec9-554d9418487e.filesusr.com/ugd/cb4a18_8b2de461625f4fcf90e4fbe297e8cd20.pdf?index=trueIn PDF document text
    • https://153f2bed-3501-4ec5-9468-ed1987511f6d.filesusr.com/ugd/f67134_55b198d07faf49279b1f266f927a658e.pdf?index=trueIn PDF document text
    • https://9e2b3e3a-6a02-4d3b-8ba9-5acc01041672.filesusr.com/ugd/66c878_eefefdcdd0044ba38b8f206d4e2b5a2b.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b8a5887-a3b1-46dd-a1a4-5564134d6a6b/nupigolaxebololexobajisez.pdfIn PDF document text
    • https://s3.amazonaws.com/fotojipifuzitul/problem_and_solution_text_type_short_examples.pdfIn PDF document text
    • http://vekemelegewimo.atwebpages.com/84575682920.pdfIn PDF document text
    • https://9df6e0af-a028-4e88-91ba-61a1b37318d5.filesusr.com/ugd/7c1f05_1ce88e84895442239bb296977c781d12.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/0cc976ec-39be-471d-bd94-2289992ace8b/mawasizifoxoteb.pdfIn PDF document text
    • https://s3.amazonaws.com/farefasejikap/69473938582.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3dcab3ce-a8bc-4b89-bd44-c0e0926b995f/contabilidad_de_costos_ejercicios_resueltos_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/wekibik/antenna_channel_guide_denver.pdfIn PDF document text
    • https://f2d828cf-06d9-46ea-85af-d88b0bc20d44.filesusr.com/ugd/501a20_037ed3d81d0848938842de1066377cc0.pdf?index=trueIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD296 5736 bytes
SHA-256: a84a41fbdb040cb2dbf46a1f4afa22c32d2ab5f0dee9873804d51feeec93540e
font_01_sfnt_off0000e5f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5F1 10348 bytes
SHA-256: 1ac74f44d212abea7026aee44753a2614ff73c8ddb3711907875b5f71af79a12

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